Flat 12, Delta Court, Grenfell Road, Maidenhead, SL6 1ES

UPRN:10012317404Flat/Maisonette2 bedsBuilt 1983-1990

LeaseholdCouncil Tax: -EPC: C (77)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

Flat 12, Delta Court, Grenfell Road, Maidenhead, SL6 1ES

HP Score

/ 100

Strong

Verdict

yesterday

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Strong fundamentals; flood risk not assessed

Evidence

20 of 21 sources

Sale Estimate

£199,000

£189k - £209kHigh

Estimate

£199k

Range

£189k – £209k

Rent Estimate (pcm)

£850

£800 - £950

Monthly

£850

Yield

5.15%

Verdict

Derived from HomePortfolio scores

Flat 12 earns an INVESTIGATE rating with HP Score 82/100. Investment score 77/100 reflects strong fundamentals. Crime intensity is low. Walkability is excellent (91/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is leasehold. Every figure here comes from the live HomePortfolio API; anything it does not publish is left out.

Key SourcesEPC RegisterPortal listingsOfcom Connected NationsOfcom mobile coverageMarket estimates (third-party AVM)HM Land Registry sales matched to addressDefra strategic noise mapping, England Round 4 (Contains Defra data © Crown copyright and database right 2023-2024, Open Government Licence v3.0)Walk ScoreONS Census 2021Police.ukHM Land Registry company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

82/ 100

Strong

Investment Score

77/ 100

High

Crime Score

32/ 100

Moderate

Walkability

91/ 100

Excellent

Transit & Bike

Transit 24Bike 64

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing checked 6 Nov 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Valuation edge2.5/15
claims [AVM +0.5% (HIGH), sold-comps +13.2%, £/sqft +13.3%] → measured edge +0.50pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp
Market estimate used (HIGH confidence) · snapshot 9 Nov 2026
- valuation_snapshotsestimate for 10012317404· as of 9 Nov 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 9.6%· as of 4 Nov 2026
Rental economics1/40
gross yield 5.2%; range width penalty ×0.85
- valuation_snapshotsrent estimate 850/mo (range 800-950)· as of 9 Nov 2026· verify before relying on this
- listing_factslisting text signals condition works - budget before trusting any yield· as of 6 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -340/mo, -40% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing
- underwriting_assumptionscosts not disclosed by the advert· as of 6 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 268 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge
- portal_listingsprice_changes + first_published_date· as of 6 Nov 2026
Risk & liquidity14.6/15
775 sales/12mo in area; valuation range width 10%
- property_intelligencetransactions_12mo

4 of 4 components scored. Ranks on gross yield, the stress margin, risk and disclosed facts. A pricing claim earns only its measured edge: today 0 for the market estimate and at most +0.5pp for sold evidence. The score itself is not yet checked against the outcomes of homes it scored.

Economics

What happens to your money

Price sensitivity

£148,500£227,500

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£197,950

At the asking price

Monthly rent£850/mo

Evidenced range £800-£950

Interest rate5.4%

Loan to value75%

Cash required: £62,145
Net cash flow: -£80/mo
Cash on cash: -1.5%
Score at this price: 18

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.27 - clears the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Evidence

Where every number comes from

valuation_snapshotsestimate for 10012317404Valuation edge · as of 9 Nov 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 9.6%Valuation edge · as of 4 Nov 2026
valuation_snapshotsrent estimate 850/mo (range 800-950)Rental economics · as of 9 Nov 2026 · verify before relying on this
listing_factslisting text signals condition works - budget before trusting any yieldRental economics · as of 6 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 6 Nov 2026

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Rental economics needs verification before you rely on it
rent estimate 850/mo (range 800-950)
Rental economics needs verification before you rely on it
listing text signals condition works - budget before trusting any yield

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The rent estimate rests on area-level evidence, not lettings on this street.
2. Treat the gap to the estimate as unproven - compare recent sold prices on the street yourself before pricing an offer around it.
On later completions, homes listed below their estimate sold at the same share of the asking price as the rest.
3. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Every step above was generated from a specific gap or flag in the evidence - no generic advice, no invented tasks.

Valuation & Market

Sale Estimate£199,000

Rent Estimate (pcm)£850

Gross Yield5.15%

1y Growth-

3y Growth+4.0%

5y Growth+1.0%

10y Growth+1.9%

Last Sold Price£249,995 (2006-04-07)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonModerate
MiningModerate
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0SL6 1ES

Approval Rate

-12mo

Development

low

26/02669/CPD
Certificate of lawfulness to determine whether the proposed 3no. front rooflights and 1no. rear dormer to accommodate a loft conversion is lawful.
Pending
26/02645/FULL
Third floor side/front infill extension.
Pending
26/02643/FULL
Alterations to the front elevation to include installation of new windows and entrance doors to ground floor following removal of existing windows, door and ATM opening.
Pending

View Planning Timeline

Ownership

Corporate Ownership54.6%
Overseas OwnershipNo
Lease Term Remaining128 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2006-04-07
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

16 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£37,653

Population Density5,048 /km²

Owner Occupied46%

Age Distribution

0-15 18%16-64 69%65+ 13%

View Area Profile

Schools Nearby

Desborough College
0.2 mi
Good
Claires Court Schools
0.4 mi
Inspected by ISI
Larchfield Primary and Nursery School
0.5 mi
-
Boyne Hill CofE Infant and Nursery School
0.6 mi
Area grades2024
Inspected after Ofsted withdrew the single overall grade.

3 of 9 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Delta Court Grenfell Road
-
£220k
-
Delta Court Grenfell Road
-
£240k
-
Delta Court Grenfell Road
-
£124k
-
Delta Court Grenfell Road
-
£225k
-

Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN